We had a mishap with our old muck spreader, the wheel rim rotted out causing the tyre to go bang whilst travelling along a road. Thankfully no one was hurt. I have sourced some old replacement wheels which are alright but these do not follow the tractor in anything but flat dry ground, unlike the old Russian aircraft tyres that were on it originally. Would anyone have a wheel and tyre like the same as this lying around they no longer use? They are 16.5 x 70 18 ply 6 stud, thanks Angus.